>Norway, where I grew up anyone shooting at someone
In Arizona you can shoot these people with ak47, thankfully and get charges dropped after a deadlocked jury. As recently happened.
I'm pretty happy with Norway doing their Norway thing and Arizona doing how we handle it here. Not interested in making the US Norway.
Though you are also speaking as if people camping on your land away from your dwelling are necessarily threatening. If that is something you believe, you might want to reflect and ask yourself why.
Nobody is asking you to allow others to do violence against you. But that you want to be free to deprive others of life and liberty on the basis of guesses strikes as a brutally authoritarian attitude.